Density - WS - L19 - PHY

If the volume of a given mass of gas increases, then ______________.

• density decreases and specific gravity increases

• density increases and specific gravity decreases

• both density and specific gravity will increase

• both density and specific gravity will decrease

1m^3 parcel of air at sea level has a mass of 1.226kg. The same parcel of air at 22000ft can have a mass of ________. (1 Point)

• 2.452 kg

• 1.226 kg

• 5.484 kg

• 0.613 kg

• 2.4gcm^-3

• 1.2gcm^-3

If the density of fuel loaded in a B777 is 0.8g/cm³, what is the mass of 10 m³ of fuel?

• 80000kg

• 8kg

• 8000kg

• 800kg

What unit is used to express specific gravity?

• kg/m³

• kg/cm³

• No units are required

• g/cm³

Density is found from:

• Volume divided by mass

• Mass divided by volume

• Volume multiplied by mass

• Mass multiplied by volume

If your aircraft stands in the sun, what will happen to the specific gravity of the fuel?

• Remain the same

• Increase

• Decrease

• Cannot be determined as not enough information

If you leave the aircraft overnight with the tanks half-empty, condensation may occur. Where will the water be found?

• At the top

• At the bottom

A liquid's specific gravity (a)   . (1 Point) - depends on its density - is always equal to 1 - is always greater than 1 - is always less than 1

• depends on its density

• is always equal to 1

• is always greater than 1

• is always less than 1